Abstract: ABSTRACTAims To investigate the effect of exposure to cannabis early in adolescence on subclinical positive and negative symptoms of psychosis.Design Cross‐sectional survey in the context of an ongoing cohort study.Setting Government‐supported general population cohort study.Participants A total of 3500 representative 19‐year olds in Greece.Measurements Subjects filled in the 40‐item Community Assessment of Psychic Experiences, measuring subclinical positive (paranoia, hallucinations, grandiosity, first‐rank symptoms) and negative psy...
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Topics: 
Psychiatry
Clinical psychology